Tex's advice on Barcelona...
I wrote a lengthy series on Barcelona during my stay there in October 1999. I've provided a link to my "Notes from Barcelona" below. I highly recommend that you eat a meal at Cal Pep. It was my favorite of the places I ate in Barcelona. A close second was Cafe De L'Academeia. I was absolutely swept off my feet by the quality of the food--especially seafood--in Barcelona. And I'm very envious of you and your trip. Please let us know where you ate, and what you thought, when you return from your trip. Happy eating!